US9130411B2 - Smart meter, supply control method, operating method, integrated circuit, system, and program - Google Patents

Smart meter, supply control method, operating method, integrated circuit, system, and program Download PDF

Info

Publication number
US9130411B2
US9130411B2 US13/637,258 US201213637258A US9130411B2 US 9130411 B2 US9130411 B2 US 9130411B2 US 201213637258 A US201213637258 A US 201213637258A US 9130411 B2 US9130411 B2 US 9130411B2
Authority
US
United States
Prior art keywords
communication
smart meter
command
power
received
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US13/637,258
Other languages
English (en)
Other versions
US20130015716A1 (en
Inventor
Hideki Matsushima
Natsume Matsuzaki
Tomoyuki Haga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sun Patent Trust Inc
Original Assignee
Panasonic Intellectual Property Management Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Panasonic Intellectual Property Management Co Ltd filed Critical Panasonic Intellectual Property Management Co Ltd
Publication of US20130015716A1 publication Critical patent/US20130015716A1/en
Assigned to PANASONIC CORPORATION reassignment PANASONIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HAGA, TOMOYUKI, MATSUSHIMA, HIDEKI, MATSUZAKI, NATSUME
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PANASONIC CORPORATION
Priority to US14/813,196 priority Critical patent/US9583978B2/en
Application granted granted Critical
Publication of US9130411B2 publication Critical patent/US9130411B2/en
Priority to US15/403,377 priority patent/US10305324B2/en
Assigned to SUN PATENT TRUST reassignment SUN PATENT TRUST ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. reassignment PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Assignors: PANASONIC CORPORATION
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • H02J13/0079—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D4/00—Tariff metering apparatus
    • G01D4/002—Remote reading of utility meters
    • G01D4/004—Remote reading of utility meters to a fixed location
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2204/00—Indexing scheme relating to details of tariff-metering apparatus
    • G01D2204/10—Analysing; Displaying
    • G01D2204/12—Determination or prediction of behaviour, e.g. likely power consumption or unusual usage patterns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • Y02B90/242—
    • Y02B90/244—
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/30—Smart metering, e.g. specially adapted for remote reading
    • Y04S20/322—
    • Y04S20/327—
    • Y10T307/696—
    • Y10T307/944—

Definitions

  • the present invention relates to a smart meter which stops a supply of power passing through the smart meter to an electrical device, upon receiving a command to stop the supply.
  • An RD command is a command which, when received by a smart meter, causes the smart meter to stop the supply of power to the electrical devices.
  • the RD command is, for example, transmitted from a server of a power company supplying the power via the power grid, to the smart meter via a network such as the Internet, and the like.
  • NPL 1 Non-Patent Literature
  • the smart meter carries out communication with the server of the power company, and so on, to investigate the RD command (see Sa 4 in FIG. 8 , and so on).
  • the second communication communication via a predetermined device (see registered device 1 r in FIG. 11 , television 31 in FIG. 1 , and so on), which is relatively less susceptible to use in unauthorized communication.
  • first communication which is susceptible to use in unauthorized communication
  • a hacker may perform unauthorized communication and carry out a secondary attack.
  • DoS denial of service
  • the present invention has as an object to provide a smart meter capable of avoiding a secondary attack after an unauthorized RD command is received.
  • the smart meter is a smart meter including: a power supply control unit configured to cause stoppage of a supply of power passing through the smart meter to an electrical device when a command to stop the supply is received; a first communication unit configured to perform a first communication through which the command is received; a second communication unit configured to perform a second communication; and a communication control unit configured to: cause the performance of the first communication before the command is received; and prohibit the performance of the first communication and cause only the performance of the second communication, after the command is received.
  • the first communication is communication through which the command is received.
  • the first communication unit may be configured to perform communication through a first communication network
  • the second communication unit may be configured to perform communication through a second communication network different from the first communication network
  • the second communication network may be a mobile phone network.
  • the first communication unit may be configured to perform communication that does not pass through a predetermined device
  • the second communication unit may be configured to perform communication which passes through the predetermined device
  • the first communication may be blocked after the command is received.
  • the first communication may be stopped after the command is received.
  • the first communication is, for example, communication that is relatively susceptible to a secondary attack, such as a DoS attack, by a hacker, and the like, who causes an unauthorized command to be received.
  • the second communication is communication and the like that is relatively insusceptible to a secondary attack such as a DoS attack.
  • the first communication is communication using a first communication path that is not (sufficiently) safe.
  • the second communication is communication using a second communication path that is (sufficiently) safe.
  • the second communication may be, for example, communication with an electrical device identified by data such as an ID, and the like, that is registered in the smart meter, and may be communication that passes through such electrical device.
  • control which does not cause the stoppage may be performed in the case where, after a command is received, judgment is performed as to whether or not the received command is unauthorized, and it is judged that the command is unauthorized. Specifically, for example, this operation is reliably and appropriately performed, and inappropriate stoppage according to an unauthorized command is appropriately avoided. Inappropriate stoppage can be reliably avoided.
  • FIG. 1 is a diagram showing a smart meter, and so on.
  • FIG. 2 is a diagram showing the smart meter, and so on.
  • FIG. 3 is a diagram showing a list of commands.
  • FIG. 4 is a diagram showing the smart meter, and so on.
  • FIG. 5 is a flowchart of an operation of the smart meter.
  • FIG. 6 is a diagram showing a table of modes.
  • FIG. 7 is a diagram showing a table of modes.
  • FIG. 8 is a diagram showing the first half of the flow of operations.
  • FIG. 9 is a diagram showing the second half of the flow of operations.
  • FIG. 10 is a flowchart showing the operations in a system.
  • FIG. 11 is a diagram showing the smart meter, a registered device, and a server.
  • FIG. 12A is diagram showing a CPU and so on in mode 1 .
  • FIG. 12B is diagram showing the CPU and so on in mode 2 .
  • FIG. 12C is a diagram showing the CPU and so on in mode 3 .
  • FIG. 12D is diagram showing the CPU and so on in mode 4 .
  • FIG. 13A is a diagram showing first and second CPUs and so on in mode 1 .
  • FIG. 13B is a diagram showing the first and second CPUs and so on in mode 2 .
  • FIG. 13C is a diagram showing the first and second CPUs and so on in mode 3 .
  • FIG. 13D is a diagram showing the first and second CPUs and so on in mode 4 .
  • FIG. 14 is a diagram showing a list of commands.
  • FIG. 15 is a diagram showing respective functions.
  • FIG. 16 is a diagram showing a configuration of a smart meter.
  • FIG. 1 is a diagram showing a smart meter 1 , and so on.
  • a system 1 s includes the smart meter 1 , a television 31 , a first server 41 , and a second server 42 .
  • system 1 s may further include a storage battery 1 a , a router 1 t , and so on.
  • the first server 41 and the second server 42 make up a server system (server) 4 which is formed by including the first server 41 and second server 42 .
  • the first server 41 is a server of a power company which supplies power from a power grid 9 a through the smart meter 1 .
  • the second server 42 is, for example, a server of the manufacturer of the television 31 .
  • the smart meter 1 is provided in a house (home) 1 h.
  • the smart meter 1 is an apparatus whereby the power (commercial power) from the power grid 9 a is supplied to an electrical device group 3 m , by passing through the smart meter 1 .
  • the electrical device group 3 m is composed of one or more electrical devices (the television 31 , a refrigerator 32 , an air conditioner 38 , and so on) provided in the house 1 h.
  • the supply of power to the electrical device group 3 m is performed, for example, via a power distribution board 1 b located between the electrical device group 3 m and the smart meter 1 .
  • the smart meter 1 detects the amount of power supplied to the electrical device group 3 m.
  • the smart meter 1 transmits the detected power amount through the Internet (first network 51 ).
  • the fee for the transmitted power amount is charged by the power company of the power grid 9 a (see first server 41 of the power company) to the owner of the house 1 h who is the other party to a contract with the power company.
  • the smart meter 1 receives (see Sa 1 in FIG. 8 , and so on, described later) a command (an RD command 1 c , and the like).
  • the command to be received is, for example, a command to stop the supply of power, such as, for example, the remote disconnect (RD) command 1 c , and the like.
  • a command to stop the supply of power such as, for example, the remote disconnect (RD) command 1 c , and the like.
  • the smart meter 1 stops the above-described supply of power passing through the smart meter 1 .
  • the RD command 1 c is, for example, transmitted to the smart meter 1 by the first server 41 of the power company when the power fee of the house 1 h is unpaid.
  • FIG. 2 is a diagram showing a configuration of the smart meter 1 .
  • the smart meter 1 includes a via-Local Area Network (LAN) command receiving unit 61 , a via-LAN command executing unit 62 , a network (NW)-and-power source switching control unit 65 , a NW switching unit 66 , a power source switching unit 67 , and a via-Local command receiving unit 68 .
  • LAN via-Local Area Network
  • NW network-and-power source switching control unit 65
  • NW switching unit 66 a power source switching unit 67
  • a via-Local command receiving unit 68 includes a via-Local Area Network (LAN) command receiving unit 61 , a via-LAN command executing unit 62 , a network (NW)-and-power source switching control unit 65 , a NW switching unit 66 , a power source switching unit 67 , and a via-Local command receiving unit 68 .
  • NW network
  • the via-LAN command receiving unit 61 performs a first communication (communication using the first communication unit 121 in FIG. 4 described later).
  • the first communication is communication performed through the first network 51 ( FIG. 1 ).
  • the first network 51 is, for example, an IP network using the Internet Protocol (IP).
  • IP Internet Protocol
  • a first communication between the smart meter 1 and the outside (the server system 4 , and so on) of the house 1 h may be performed via the router 1 t ( FIG. 1 ).
  • the first network 51 is for example an IP network.
  • the part of the first network 51 which is outside of the house 1 h that is, the part that is outside beyond the router 1 t , may be the Internet.
  • the via-LAN command receiving unit 61 receives a command using the first communication.
  • FIG. 3 is a diagram showing a list 62 t of commands that are received by the via-LAN command receiving unit 61 .
  • the RD command 1 c ( FIG. 1 ) described earlier is, for example, received by the via-LAN command receiving unit 61 .
  • the via-LAN command executing unit 62 executes commands (the RD command 1 c and the like) received by the via-LAN command receiving unit 61 .
  • the power source switching unit 67 causes the supply of power to be stopped (see Sa 2 in FIG. 8 , Sm 11 in FIG. 10 , and so on, described later) when the RD command 1 c is received.
  • the power source switching unit 67 may be, for example, a switch, and the like, which switches state from a first state to a second state.
  • the first state is a state in which the power grid 9 a and the power distribution board 1 b are connected and the supply of power to the electrical device group 3 m is performed.
  • the second state is a state in which such connection is not made and the supplying is not performed.
  • the power source switching unit 67 may switch its state from the first state to the second state to stop the supply of power when the RD command 1 c is received.
  • the power source switching unit 67 may be controlled to perform such operation.
  • control may be performed by the NW-and-power source switching control unit 65 .
  • this control may be performed by a control unit, and the like, provided inside of the power source switching unit 67 .
  • the supply of power may be stopped simply, and without the need for service staff to go to the house 1 h.
  • an RD command 1 c that is not unauthorized is, for example, the RD command 1 c transmitted by the first server 41 of the power company described earlier.
  • an unauthorized RD command 1 c is an RD command 1 c , and so on, transmitted by a third-party computer 1 Q ( FIG. 1 ) of a hacker, and the like.
  • step Sa 4 in FIG. 8 it is necessary for communication to be performed by the smart meter 1 (see step Sa 4 in FIG. 8 , step Sa 5 in FIG. 9 which are to be described later, and so on).
  • such communication is, for example, as described in detail later, communication involved in processing (for example, investigation/restoration processing, processing to avoid unauthorized stoppage, and so on) for avoiding adverse effects (significant adverse effects) caused by receiving the unauthorized RD command 1 c , and so on.
  • the via-Local command receiving unit 68 performs a second communication (communication using a second communication unit in FIG. 4 described later) performed through the second network 52 ( FIG. 1 ).
  • the second communication is communication that is relatively difficult for the third-party computer 1 Q of a hacker and the like to be connected to perform unauthorized communication.
  • the second communication (communication by the second communication unit 122 ) is communication that is not as susceptible to use in unauthorized communication as the above-described first communication (communication by the first communication unit 121 ).
  • unauthorized communication is, for example, communication in which an unauthorized packet is sent, or a DoS attack communication, and so on, from the third-party computer 1 Q, and so on.
  • the first communication may be communication that is not communication with a predetermined device (see for example, the television 31 , the registered device 1 r in FIG. 11 ), and the second communication may be communication with a predetermined device.
  • authentication by the predetermined device may be unnecessary when the first communication is performed, whereas communication by such device may be necessary when the second communication is performed.
  • attacking through the first communication may be performed even when it is not a case where the third-party computer 1 Q wrongfully receives authentication from the predetermined device, whereas the attacking through the second communication may be performed in the case where wrongful authentication is received from the device.
  • an attack through the second communication occurs only in a case where wrongful authentication is received from the device (television 31 ), and thus the second communication may be relatively less susceptible to use in an attack.
  • the second communication may be communication that is mediated by a predetermined device (television 31 , and so on), that is, communication that passes through such device.
  • the aforementioned predetermined device is, for example, a device (registered device 1 r in FIG. 11 ) that is identified by predetermined data (for example, “ID001” which is the ID of the television 31 in FIG. 1 ).
  • Such data is, for example, a registered device list 8 d 1 in FIG. 1 described later (see “001” in the registered device list 8 d 1 in FIG. 11 ).
  • each of plural predetermined devices may be identified by the predetermined data, and the communication with each of such predetermined devices may be carried out using the second communication.
  • the registered device list 8 d 1 may be stored in a predetermined registration unit (for example, the via-Local command receiving unit 68 and the like are acceptable), and device registration into the registration unit may be performed (see registered device 1 r in FIG. 11 ).
  • a predetermined device may be the television 31 as described above.
  • the operation performed by the television 31 and the like when power is turned OFF may include operations such as processing of second communication with the smart meter 1 performed by the television 31 and the like.
  • the second communication may be implemented using a public phone network.
  • SIM subscriber identity module
  • the second communication may be performed using the SIM card or software SIM that is provided.
  • the NW switching unit 66 causes the performance of the above described first communication (Sx 2 ) before the RD command 1 c is received (see No in Sx 3 in FIG. 5 described later).
  • the NW switching unit 66 causes the performance of the above described second communication (Sx 5 ) after the RD command 1 c is received (see Yes in Sx 3 ).
  • NW switching unit 66 may be controlled to perform such operation.
  • control may be performed by the NW-and-power source switching control unit 65 .
  • this control may be performed by a control unit, and the like, provided inside the NW switching unit 66 .
  • not allowing first communication refers to, for example, blocking (the communication path of) the first communication.
  • not allowing first communication may, for example, refer to causing the stoppage of the first communication.
  • second communication may also be performed before the RD command 1 c is received.
  • the second communication (Sx 5 ), which is not susceptible to use in unauthorized communication, is performed, and thus secondary attack can be prevented.
  • FIG. 4 is a diagram showing the smart meter 1 , and so on.
  • FIG. 5 shows a flowchart for the smart meter 1 .
  • step Sx 1 supply of the power of the power grid 9 a is performed.
  • step Sx 2 a first communication (first communication unit 121 , via-LAN command receiving unit 61 ) is performed.
  • step Sx 3 it is judged whether or not an RD command 1 c is received.
  • control for causing the supply of power and so on (Sx 1 , Sx 2 ) to continue may be performed.
  • step Sx 4 the supply of power from the power grid 9 a is stopped when it is judged that an RD command 1 c is received (Yes in Sx 3 ).
  • step Sx 5 a second communication (second communication unit 122 , via-Local command receiving unit 68 ) is performed.
  • the RD command 1 c may be received in Sx 2 .
  • the first communication unit 121 in FIG. 4 is described as follows.
  • a power supply control unit 11 (the power source switching unit 67 and the NW-and-power source control unit 65 , or only the power source switching unit 67 , and so on) receives an RD command 1 c to stop the supply of power passing through the smart meter 1 to an electrical device (television 31 , and so on) (Yes in Sx 3 , Sa 1 in FIG. 8 described later, Sm 11 in FIG. 10 described later), the power supply control unit 11 causes the supply to be stopped (Sx 4 , Sa 2 in FIG. 8 , Sm 12 in FIG. 10 ).
  • each of the first and second communication units (communication interfaces) 121 and 122 which perform communication are provided (the via-LAN command receiving unit 61 and the via-Local command receiving unit 68 ).
  • the NW-and-power source switching control unit 65 and the NW switching unit 66 there is also a communication control unit 13 (the NW-and-power source switching control unit 65 and the NW switching unit 66 , or only the NW switching unit 66 , and so on).
  • the communication control unit 13 may cause first communication by the first communication unit 121 to be performed before an RD command 1 c is received (No in Sx 3 ), and, after the RD command 1 c is received (Yes in Sx 3 , Sa 1 ), causes only second communication (Sx 5 , Sa 4 , Sa 5 , Sm 12 , Sm 62 ) by the second communication unit 122 to be performed without causing the performance of the first communication that was performed before the reception.
  • the via-LAN command receiving unit 61 in FIG. 2 is part of the first communication unit 121 in FIG. 4 .
  • the function block of the via-Local command receiving unit 68 , and so on, in FIG. 2 may, in the same manner as this example, be, for example, part of the function block in FIG. 4 corresponding to such function block.
  • the process in Sx 4 may be executed after the process in Sx 5 .
  • the smart meter 1 upon receiving the RD command 1 c (Yes in Sx 39 ), the smart meter 1 does immediately not cause the stoppage of the supply of power from the power grid 9 s (Sx 4 ), and obtains information from (the first server 41 of) the power company and so on, by second communication (Sx 5 ) via a smart grid (SG)-compliant household appliance (registered device 1 r ), prior to causing the stoppage (Sx 4 ) (see Sa 5 and so on in FIG. 9 ).
  • the information to be obtained is, for example, information indicating whether or not the received RD command 1 c is a command transmitted by the first server 41 of the power company (i.e., a correct RD command 1 c ).
  • stoppage (Sx 4 ) of the supply may be performed after the aforementioned second communication (Sx 5 ).
  • the smart meter provided in each of the houses may have a configuration that is the same as the configuration of the above-described smart meter 1 of the house 1 h.
  • the aforementioned registered device 1 r ( FIG. 11 ) is, for example, an electrical device, such as the television 31 and the like, to which the power from the power grid 9 a is supplied.
  • the registered device 1 r operates under the power from the power grid 9 a (Sx 1 ) which is supplied through the smart meter 1 in the case where the RD command 1 c is not received (No in Sx 3 ) (see “power distribution grid” in mode 1 , in row 2 , column 5 in FIG. 6 described later).
  • the registered device 1 r may operate under power other than the power from the power grid 9 a (for example, power from the storage battery 1 a ) (see “storage battery” in column 5 of mode 2 ).
  • the registered device 1 r may perform the above-described processing for the second communication through such an operation under other power (power of the storage battery 1 a ).
  • such other power is power from the storage battery 1 a ( FIG. 1 ) and the like.
  • the storage battery 1 a is a storage battery provided in the house 1 h.
  • the power source switching unit 67 may prohibit the supply of power from the power grid 9 a to the registered device 1 r , when the RD command 1 c is received (Yes in Sx 3 ).
  • the power source switching unit 67 may cause the other power (power of the storage battery 1 a ) to be supplied to the registered device 1 r in place of power from the power grid 9 a.
  • control for causing such an operation may be performed by the NW-and-power source switching control unit 65 .
  • the operation of the smart meter 1 may be performed, not under the power from the storage battery 1 a , but under the power from the power grid 9 a (see “power distribution grid” in mode 2 in row 3 , column 4 in FIG. 6 ).
  • FIG. 6 is a diagram showing a table for four modes.
  • the smart meter 1 may operate in a mode selected from plural modes (modes 1 to 4 ). Moreover, such selection may be performed, for example, by the power supply control unit 11 ( FIG. 4 ).
  • operation in mode 1 may be performed before the RD command 1 c is received (No in Sx 3 ).
  • operation in mode 2 (row 3 ) may be performed immediately after mode 1 ends.
  • blocking of communication (see “not possible” in row 3 , column 3 ) and so on may be performed.
  • the operation of the registered device 1 r may be performed under the power of the storage battery 1 a (see previous description).
  • the operation of the respective electrical devices may be performed under the power of the storage battery 1 a.
  • the power from the power grid 9 a may be supplied to an electrical device when a predetermined condition is satisfied, and so on.
  • this condition may be, for example, a condition that such electrical device is the refrigerator 32 , and so on.
  • operation in mode 4 may be performed.
  • the operation of the registered device 1 r may be performed under the power from the power grid 9 (see previous description).
  • the operation of the respective electrical devices may be performed under the power from the power grid 9 a.
  • operation in mode 1 may be performed again.
  • operation in mode 3 may be performed in the period that is not the period in which the operation in mode 4 is performed.
  • first communication may be performed regardless of whether it is after the RD command 1 c is received.
  • the smart meter 1 may also operate under the power of the storage battery 1 a instead of operating under the power from the power grid 9 a.
  • operation may be performed only in modes 1 , 2 , and 4 , without performing such an operation in mode 3 .
  • FIG. 7 is a diagram showing a table 65 t.
  • row 2 indicates whether or not power from the power grid 9 a is to be supplied, and row 3 indicates whether or not first communication is to be performed.
  • Table 65 t is to be referred to as necessary.
  • the smart meter 1 is included in the system 1 s ( FIG. 1 ).
  • the first server 41 of the power company in the server system 4 ( FIG. 1 ), may transmit an RD command 1 c.
  • the second server 42 of the manufacturer may receive the transmitted RD command 1 c , and transmit the received RD command 1 c to the smart meter 1 using first communication via the Internet (first network 51 ).
  • FIG. 8 is a diagram showing the first half of the flow of operations in the system 1 s . It should be noted FIG. 9 showing the second half shall be described in detail later.
  • FIG. 10 is a flowchart showing the operations in the system 1 s.
  • the smart meter 1 receives the RD command 1 c transmitted by the second server 42 (Sa 1 , Sm 11 , Sx 2 , Yes in Sx 3 in FIG. 5 ).
  • the supply of power may be stopped and the first communication may be blocked (Sa 2 , Sm 12 , Sx 4 , Sx 5 ).
  • FIG. 11 is a diagram showing the smart meter 1 , the registered device 1 r , the server system 4 , and so on.
  • a record 8 d 2 ( FIG. 11 ) of the operation of the smart meter 1 may be transmitted using such second communication (command execution record transmitting unit 64 a in FIG. 2 , Sa 4 , Sm 12 ).
  • the record 8 d 2 to be transmitted may be information (record of commands) and the like identifying respective commands executed by the smart meter 1 before the RD command 1 c is received.
  • the record 8 d 2 may be stored in the smart meter 1 (record storage unit 64 in FIG. 2 ), and the stored record 8 d 2 may be transmitted to the registered device 1 r.
  • the record storage unit 64 may be, for example, a storage device having what is called tamper-resistance, and the like, such that the stored record 8 d 2 is relatively insusceptible to unauthorized reading.
  • a signature 8 d 3 ( FIG. 11 ) of the record 8 d 2 may be generated by the smart meter 1 (Sa 3 , Sm 12 ).
  • the signature 8 d 3 of the record 8 d 2 may be transmitted by the smart meter 1 , together with the record 8 d 2 , to the registered device 1 r.
  • verification of the transmitted signature 8 d 3 may be performed in the server system 4 , and so on (Sd 2 in FIG. 8 ), and operation based on the record 8 d 2 may be performed when such verification is successful.
  • signatures may also be generated (Sb 3 , Sd 3 , Sc 6 ) for data (device information 8 d 5 , data 8 d 7 and 8 d 9 , and so on) other than the record 8 d 2 , and transmitting, receiving, verification (Sd 2 , Sc 4 , Sb 6 , Sa 6 ) and so on, of the generated signatures may also be carried out, as shown in FIG. 11 .
  • the transmitted record 8 d 2 is received by the registered device 1 r (Sb 1 , Sm 21 ).
  • the received record 8 d 2 is transmitted from the registered device 1 r to the second server 42 of the manufacturer (Sb 4 , Sm 22 ).
  • device information 8 d 5 ( FIG. 11 ) indicating the power consumption of an electrical device (the registered device 1 r , and the like) may also be transmitted (Sb 4 , Sm 22 ).
  • either or both the device information 8 d 5 of the power consumption of the registered device 1 r and the device information 8 d 5 of other electrical devices may be transmitted.
  • device group information 8 d 4 ( FIG. 11 ) composed of the device information of the respective electrical devices may be obtained in the server system 4 .
  • the electrical device may operate (Sb 2 ) in an emergency operating mode (Sm 22 in FIG. 10 ) when the record 8 d 2 is received (Sb 1 , Sm 21 ).
  • the aforementioned emergency operating mode is a mode in which power consumed in such mode is relatively small.
  • the receipt of the record 8 d 2 may be notified by receiving the record 8 d 2 as a notification indicating that the RD command 1 c has been received.
  • data (data 8 d 7 , 8 d 9 ( FIG. 11 )) may be generated when the transmitted record 8 d 2 of the operation of the smart meter 2 is received (Sc 1 ).
  • each of the data 8 d 7 which is a restoration guide
  • the data 8 d 9 which is an operations guide
  • each of the data 8 d 7 which is a restoration guide
  • the data 8 d 9 which is an operations guide
  • the generated restoration guide data 8 d 7 may be, for example, control data, and the like, specifying an operation of the smart meter 1 and performing, on the smart meter 1 , control for causing such operation.
  • the operation may be instructed through the data 8 d 7 .
  • the data 8 d 7 may also be data specifying a mode (see FIG. 6 ) and causing the operation in the specified mode.
  • the generated operations guide data 8 d 9 may be, for example, data specifying an operation of the registered device 1 r and instructing the registered device 1 r to perform such operation.
  • the operation of the devices other than the registered device 1 r may be instructed through the operations guide data 8 d 9 .
  • data 8 d 9 may also be data specifying a mode and causing the operation in the specified mode.
  • the data 8 d 7 which is a restoration guide for the operation of the smart meter 1 , may be generated by the first server 41 of the power company (Sd 3 , Sm 42 ).
  • the data 8 d 9 which is an operations guide for the operation of the registered device 1 r , may be generated by the second server 42 of the manufacturer (Sc 5 , Sm 51 ).
  • the record 8 d 2 and so on of the operation of the smart meter 1 transmitted by the registered device 1 r is received by the second server 42 of the manufacturer in the server system 4 (Sc 1 , Sm 31 ).
  • the received record 8 d 2 is transmitted to the first server 41 of the electric company (Sc 2 , Sm 31 ).
  • the above-described restoration guide data 8 d 7 ( FIG. 11 ) is generated by the first server 41 from a part or the entirety of the received record 8 d 2 , and so on.
  • FIG. 9 is a diagram showing the second half portion of the operations in the system 1 s.
  • the generated data 8 d 7 is transmitted to the second server 42 of the manufacturer (Sd 4 , Sm 42 ).
  • the transmitted data 8 d 7 is received by the second server 42 of the manufacturer (Sc 3 , Sm 51 ).
  • the operations guide data 8 d 9 is generated by the second server 42 of the manufacturer (Sc 5 , Sm 51 ).
  • Such generation is performed using on one or both of the received record 8 d 2 and so on (Sc 1 ) and the received operations guide data 8 d 7 (Sc 3 ).
  • the restoration guide data 8 d 7 (Sc 3 ) received from the first server 41 of the power company and the generated operations guide data 8 d 9 (Sc 5 ) are each transmitted to the registered device 1 r (Sc 7 , Sm 51 ).
  • the registered device 1 r receives the transmitted data 8 d 7 and 8 d 9 (Sb 5 , Sm 61 ).
  • the operation specified by the received operations guide data 8 d 9 is performed by the registered device 1 r (Sb 7 , Sm 61 ).
  • the received restoration guide data 8 d 7 is transmitted to the smart meter 1 (Sb 8 , Sm 62 ).
  • transmitted restoration guide data 8 d 7 is received (Sa 5 , Sm 71 , Sx 5 ), and the operation specified by the received data 8 d 7 is performed by the smart meter 1 (Sa 7 , Sm 71 ).
  • the system 1 s may include: the smart meter 1 ; the registered device 1 r (for example, the television 31 ) to which power from the power grid 9 a is supplied via the smart meter 1 ; and the server system 4 .
  • the power supply control unit 11 may stop the supply of power (Sa 2 , Sx 4 ).
  • the smart meter 1 may transmit, to a predetermined electrical device (registered device 1 r , television 31 ), a record 8 d 2 of the operation of the smart meter 1 , through a second communication by the second communication unit 122 (command execution record transmitting unit 64 a , Sa 4 , Sx 5 ).
  • the registered device 1 r may transmit the transmitted record 8 d 2 to the server system 4 (first server 41 of the manufacturer) (Sb 4 ).
  • the server system 4 may transmit, to the registered device 1 r , each of restoration guide data 8 d 7 , which is first data specifying an operation of the smart meter 1 , and operations guide data 8 d 9 , which is second data specifying an operation of the registered device 1 r (electrical device) (Sc 7 ).
  • the registered device 1 r may perform the operation specified by the transmitted second data (data 8 d 9 ) and transmit, to the smart meter 1 , the transmitted first data (data 8 d 7 ).
  • the smart meter 1 may perform the operation specified by the transmitted first data (data 8 d 7 ).
  • FIG. 12A is a diagram showing a RAM, and so on, in an operation in mode 1 ( FIG. 6 ).
  • FIG. 12B is a diagram showing a RAM, and so on, in an operation in mode 2 .
  • FIG. 12C is a diagram showing a RAM, and so on, in an operation in mode 3 .
  • FIG. 12D is a diagram showing a RAM, and so on, in an operation in mode 4 .
  • a second firmware 73 may also be executed by a central processing unit (CPU) 70 .
  • CPU central processing unit
  • the first firmware 71 may be executed in each of the cases shown in FIG. 12A (operation 1 ) and FIG. 12D (operation 4 ).
  • the second firmware 73 may be executed in each of the cases shown in FIG. 12B (operation 2 ) and FIG. 12C (operation 3 ).
  • the size of the second firmware 73 is smaller than the size of the first firmware 71 .
  • the second firmware 73 does not include the portion for the processing of the first communication, and therefore has a relatively small size.
  • the vulnerability with the second firmware 73 may be low since its size is small, functions to be realized are few, functions to be realized are not prone to include security holes, and so on.
  • the power to be supplied in each of operations 1 and 4 is the power from the power grid 9 a (see modes 1 and 4 in FIG. 6 ).
  • the power supplied in each of the operations 2 and 3 is the power of the storage battery 1 a (see modes 2 and 3 ).
  • first communication is performed in each of operations 1 and 3 (see modes 1 and 3 in FIG. 6 ).
  • first communication is not performed in each of operations 2 and 4 (see modes 2 and 4 ).
  • the CPU 70 is a CPU provided in the smart meter 1 . It should be noted that the CPU 70 may be a CPU provided in the registered device 1 r.
  • the smart meter 1 may exceptionally operate on the first firmware 71 when an operation under the power of the power grid 9 a is to be performed in such device even after the RD command 1 c is received.
  • operation at a relatively high frequency (normal operation 70 H in FIG. 12A ) may be performed in the case of FIG. 12A and FIG. 12D
  • operation at a relatively low frequency (power-saving operation 70 L) may be performed in the case of FIG. 12B and FIG. 12C .
  • FIG. 12A it is acceptable to use devices (smart meter 1 , television 31 , and so on) which operate at a relatively high frequency before the RD command 1 c to stop power supply is received ( FIG. 12A ) and operate at a relatively low frequency after the RD command 1 c is received ( FIG. 12B , FIG. 12C ).
  • the mode in which the smart meter 1 is operating may be detected by the registered device 1 r using second communication, and so on.
  • FIG. 13A is a diagram showing a RAM, and so on, in an operation in mode 1 .
  • FIG. 13B is a diagram showing a RAM, and so on, in an operation in mode 2 .
  • FIG. 13C is a diagram showing a RAM, and so on, in an operation in mode 3 .
  • FIG. 13D is a diagram showing a RAM, and so on, in an operation in mode 4 .
  • two CPUs such as a first CPU 74 and a second CPU 75 ( FIG. 13A , and so on) may be provided instead of having only the single CPU 70 ( FIG. 12A , and so on).
  • processing may be executed by the first CPU 74 when a first firmware 76 is executed, and processing may be executed by the second CPU 75 when a second firmware 78 is executed.
  • first and second CPUs 74 and 75 are provided in the smart meter 1 .
  • the power consumption of the second CPU 75 when performing program execution may be less than the power consumption of the first CPU 74 when performing program execution of the same program.
  • devices smart meter 1 , television 31 , and so on
  • processing is executed using the first CPU 74 before the RD command 1 c to stop power supply is received ( FIG. 13A ) and processing is executed using the second CPU 75 after the RD command 1 c is received ( FIG. 13B , FIG. 13C ).
  • the second firmware 78 may be firmware having lower vulnerability (problems which may cause risks are fewer) than the first firmware 76 , and so on.
  • FIG. 14 is a diagram showing a list 69 t of commands received through second communication.
  • each of the commands in the list 69 t may be received through second communication.
  • the received command may be executed by the via-Local command execution unit 69 ( FIG. 2 ).
  • the receiving of a command through second communication such as that described above, for example, may also be performed before the RD command 1 c is received or may be performed only after the RD command 1 c is received.
  • the types of commands in the list 69 t may be restrictive and fewer than the types of commands in the list 62 t in FIG. 3 .
  • a command for remote meter reading need not be receivable through second communication.
  • a command for network blocking (for example, the RD command 1 c ) need not be receivable through second communication.
  • the following operations may be performed by the smart meter.
  • mode 1 When trouble occurs, the operating mode transitions from a normal (remote command-receivable) mode (mode 1 ) to an emergency (interaction only with internal registered devices; electrical devices are storage battery-driven) mode (mode 2 , and so on).
  • the command execution record (record 8 d 2 ) is safely held (record storage unit 64 ). Then, the held command execution record is safely transmitted to the first server 41 of the power company via a household appliance (television 31 ) when trouble occurs. Then, the transmitted command execution record is used as a lead for distinguishing between an attack by a hacker, and the like, and an actual mishap.
  • the electrical devices such as the television 31 and so on may transition from the normal operating mode to a power-interruption mode (a mode which allows rapid shutdown of storage devices for data that may be lost).
  • the receipt of the RD command 1 c may be notified to the registered device 1 r by way of transmission of the record 8 d 2 .
  • a restoration guide (data 8 d 7 ) is formulated based on the command execution record (record 8 d 2 ) and sent to the smart meter 1 via the television 31 .
  • the following operations may be performed in the server system 4 (for example, the first server 41 of the power company).
  • judgment for whether or not the RD command 1 c received by the smart meter 1 is an unauthorized RD command 1 c may be performed.
  • this judgment may be performed by judging whether or not the identification number, and the like, of the RD command 1 c received by the smart meter 1 is the same as the identification number of the RD command 1 c transmitted by the first server 41 .
  • judgment may be performed for whether or not the same phenomenon (a greater number of incidences than a threshold) is occurring in other houses in the district (same district) in which the house 1 h provided with the smart meter 1 is located.
  • judgment may be performed for whether the phenomenon is not occurring and there is no anomaly in (the power distribution network such as) the power grid 9 a , or the phenomenon is occurring and there is an anomaly.
  • the restoration guide data 8 d 7 which instructs operation in a recovery mode (mode 4 ) may be generated and transmitted to the smart meter 1 .
  • a predetermined process for verifying that there is no anomaly in the power distribution network may be performed, and the aforementioned generating and transmitting, and so on, may be performed only when it is verified through such processing that there is no anomaly.
  • the second server 42 of the manufacturer may issue, to the television 31 , and so on, an instruction for causing operation in a predetermined recovery mode (see operations guide data 8 d 9 and so on).
  • the first server 41 of the power company may transmit a planned restoration date (to the smart meter 1 , and so on) (see restoration guide data 8 d 7 ).
  • planned restoration date to be transmitted may specify a specific planned restoration date and so on.
  • the second server 42 of the manufacturer may issue an instruction to cause the performance of power-saving control such as control to cause only the refrigerator to operate (see operations instruction data 8 d 9 ).
  • control for reducing power consumption further as the planned restoration date is far may be performed by the refrigerator 32 and so on.
  • Whether or not to send such a power-saving instruction may be determined by the second server 42 of the manufacturer, and so on, in view of the planned restoration date, the amount of stored power of the storage battery la, the device usage state (the device group information 8 d 4 in FIG. 11 , and so on), and so on.
  • FIG. 15 is a diagram showing plural functions (function 81 to function 89 ).
  • the smart meter 1 may, for example, have the function blocks for the respective functions of function 81 to function 89 in FIG. 15 .
  • the smart meter 1 is superior to such assumed smart meter.
  • the address of the smart meter 1 in a first communication using the first communication unit 121 may be a first address
  • the address of the smart meter 1 in a second communication using the second communication unit 122 may be a second address.
  • the address of the smart meter 1 when communication is performed may be switched by the smart meter 1 between the first address and the second address.
  • MAC media access control
  • communication using a first MAC address may be performed in a first communication
  • communication using a second MAC address may be performed in a second communication
  • the first communication unit 121 may be a first communication device which performs communication using the first MAC address
  • the second communication unit 122 may be a second communication device which performs communication using the second MAC address.
  • each of the communication devices may be, for example, what is called a communication card.
  • first communication may be communication through a first communication path
  • second communication may be communication through a second communication path that is different from the first communication path
  • FIG. 16 is a diagram showing a configuration of the smart meter 1 , and so on.
  • first communication may be communication through a first communication network (first network) 51 n
  • second communication may be communication through a second communication network (second network) 52 n that is different from the first communication network 51 n.
  • the first communication network 51 n may be the IP network shown in FIG. 16
  • the second communication network 52 n may be a mobile phone network.
  • the second communication network 52 n may be a mobile phone network, and communication through the second communication network 52 n may be relatively insusceptible to attack by a hacker and the like.
  • the first communication network 51 n may be the Internet.
  • the second communication network 52 n may be a Worldwide Interoperability for Microwave access (WiMAX) communication network instead of a mobile phone network.
  • WiMAX Worldwide Interoperability for Microwave access
  • first address in a first communication may be an address in the first communication network 51 n
  • second address in a second communication may be an address in the second communication network 52 n.
  • the first communication path (described earlier) may be a communication path passing through the first communication network 51 n
  • the second communication path (described earlier) may be a communication path passing through the second communication network 52 n.
  • the first communication device may be a communication device that performs communication in the first communication network 51 n
  • the second communication device may be a communication device that performs communication in the second communication network 52 n.
  • the first communication device may be what is called a Network Interface Card (NIC) or a Wireless Network Interface Card (WNIC), and the like
  • the second communication device may be a communication device that performs wireless communication using a mobile phone.
  • SIM Subscriber Identity Module
  • an operation may be performed by the smart meter 1 .
  • This operation for example, is an operation executed by a CPU provided in the smart meter 1 .
  • This operation for example, includes an operation performed by the power supply control unit 11 and an operation performed by the communication control unit 13 , but does not include an operation performed by the first communication unit 121 and an operation performed by the second communication unit 122 .
  • a clock frequency of the CPU executing this operation there may be a first frequency (see FIG. 12A and so on) and a second frequency (see FIG. 12B ) that is lower than the first frequency.
  • the first firmware 71 and the second firmware 73 may be provided as firmware to be executed by the CPU when this operation is performed.
  • the first CPU 74 and the second CPU 75 may be provided in the smart meter 1 .
  • the operation there may be a first operation before the RD command 1 c is received and a second operation after the command is received.
  • the first operation may be performed at the first frequency, and the second operation may be performed at the second frequency. Furthermore, the first operation may be performed on the first firmware 71 , and the second operation may be performed on the second firmware 73 . Furthermore, the first operation may be performed using the first CPU 74 , and the second operation may be performed using the second CPU 75 .
  • the present technique allows combining of plural constituent elements (for example, see the power supply control unit 11 and the communication control unit 13 in FIG. 4 , and so on), and thus a synergetic effect is produced from such combination.
  • the prior art lacks all or part of these constituent element, and thus the synergistic effect is not produced.
  • the present technique differs from and is superior to the prior art in this point.
  • the present invention can be implemented, not only as a device, a system, and so on, but also as: a method having steps corresponding to the processing units included in such device; a program causing a computer to execute such steps; a computer-readable recording medium, such as a CD-ROM, on which such program is recorded; and information, data, or a signal representing such program.
  • a program, information, data and signal may be distributed via a communication network such as the Internet.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Selective Calling Equipment (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Telephonic Communication Services (AREA)
US13/637,258 2011-02-04 2012-01-27 Smart meter, supply control method, operating method, integrated circuit, system, and program Active 2033-04-08 US9130411B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/813,196 US9583978B2 (en) 2011-02-04 2015-07-30 Smart meter, supply control method, operating method, integrated circuit, system, and program
US15/403,377 US10305324B2 (en) 2011-02-04 2017-01-11 Smart meter, supply control method, operating method, integrated circuit, system, and program

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011022297 2011-02-04
JP2011-022297 2011-02-04
PCT/JP2012/000547 WO2012105210A1 (ja) 2011-02-04 2012-01-27 スマートメータ、供給制御方法、動作方法、集積回路、システム、およびプログラム

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2012/000547 A-371-Of-International WO2012105210A1 (ja) 2011-02-04 2012-01-27 スマートメータ、供給制御方法、動作方法、集積回路、システム、およびプログラム

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US14/813,196 Division US9583978B2 (en) 2011-02-04 2015-07-30 Smart meter, supply control method, operating method, integrated circuit, system, and program
US14/813,196 Continuation US9583978B2 (en) 2011-02-04 2015-07-30 Smart meter, supply control method, operating method, integrated circuit, system, and program

Publications (2)

Publication Number Publication Date
US20130015716A1 US20130015716A1 (en) 2013-01-17
US9130411B2 true US9130411B2 (en) 2015-09-08

Family

ID=46602436

Family Applications (3)

Application Number Title Priority Date Filing Date
US13/637,258 Active 2033-04-08 US9130411B2 (en) 2011-02-04 2012-01-27 Smart meter, supply control method, operating method, integrated circuit, system, and program
US14/813,196 Active US9583978B2 (en) 2011-02-04 2015-07-30 Smart meter, supply control method, operating method, integrated circuit, system, and program
US15/403,377 Active 2032-08-21 US10305324B2 (en) 2011-02-04 2017-01-11 Smart meter, supply control method, operating method, integrated circuit, system, and program

Family Applications After (2)

Application Number Title Priority Date Filing Date
US14/813,196 Active US9583978B2 (en) 2011-02-04 2015-07-30 Smart meter, supply control method, operating method, integrated circuit, system, and program
US15/403,377 Active 2032-08-21 US10305324B2 (en) 2011-02-04 2017-01-11 Smart meter, supply control method, operating method, integrated circuit, system, and program

Country Status (4)

Country Link
US (3) US9130411B2 (ja)
JP (1) JP6145813B2 (ja)
CN (1) CN102823108B (ja)
WO (1) WO2012105210A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9612133B2 (en) 2014-07-14 2017-04-04 International Technological University Smart meter system communication methods
US9000753B1 (en) 2014-07-14 2015-04-07 International Technological University Smart meter voltage and current sensing using optically coupled isolators
US9383223B2 (en) 2014-07-14 2016-07-05 International Technological University Smart meter system architecture
JP5957772B2 (ja) 2014-11-13 2016-07-27 パナソニックＩｐマネジメント株式会社 機器制御装置及びデマンドレスポンス方法
US20170373536A1 (en) * 2016-06-23 2017-12-28 Powermatic Technologies Bvba Smart Remote Power Management Method and Apparatus
AU2016429466B2 (en) * 2016-11-11 2020-04-02 Mitsubishi Electric Corporation Communication device, communication system, communication method, and program
EP3416264A1 (en) * 2017-06-14 2018-12-19 Schneider Electric IT Corporation Uninterruptible power supply communication

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461558A (en) * 1994-04-18 1995-10-24 Motorola, Inc. Method and apparatus having time dependent sleep modes
JP2001283364A (ja) 2000-03-28 2001-10-12 Tokyo Gas Co Ltd 計測装置およびガスメータならびに計測システム
CN1395109A (zh) 2001-07-02 2003-02-05 松下电器产业株式会社 电力管理装置
JP2003143758A (ja) 2001-11-01 2003-05-16 Hitachi Ltd 電力供給サービスおよび電力供給システム
JP2004080919A (ja) 2002-08-19 2004-03-11 Tamura Electric Works Ltd 電気機器の電源制御システム及び電源制御方法
JP2004254459A (ja) 2003-02-21 2004-09-09 Densei Lambda Kk 電源ネットワークシステム
JP2006010095A (ja) 2004-06-22 2006-01-12 Matsushita Electric Ind Co Ltd 遠隔制御装置
JP2006100952A (ja) 2004-09-28 2006-04-13 Matsushita Electric Ind Co Ltd 通信装置
JP2009033880A (ja) 2007-07-27 2009-02-12 Kyushu Electric Power Co Inc 電力線通信信号遮断機能を有する電力量計
US20100010683A1 (en) * 2008-07-14 2010-01-14 Lawrence Kates Method and apparatus for power-limiting electrical access
JP2010250508A (ja) 2009-04-14 2010-11-04 Chugoku Electric Power Co Inc:The 電力情報管理方法
US20110309689A1 (en) * 2010-06-17 2011-12-22 Semiconductor Energy Laboratory Co., Ltd. Electric power transmitting device, electric power receiving device, and power supply method using electric power transmitting and receiving devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI364518B (en) * 2008-07-29 2012-05-21 Ind Tech Res Inst Power saving managing method and system using the same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5461558A (en) * 1994-04-18 1995-10-24 Motorola, Inc. Method and apparatus having time dependent sleep modes
JP2001283364A (ja) 2000-03-28 2001-10-12 Tokyo Gas Co Ltd 計測装置およびガスメータならびに計測システム
CN1395109A (zh) 2001-07-02 2003-02-05 松下电器产业株式会社 电力管理装置
JP2003143758A (ja) 2001-11-01 2003-05-16 Hitachi Ltd 電力供給サービスおよび電力供給システム
JP2004080919A (ja) 2002-08-19 2004-03-11 Tamura Electric Works Ltd 電気機器の電源制御システム及び電源制御方法
JP2004254459A (ja) 2003-02-21 2004-09-09 Densei Lambda Kk 電源ネットワークシステム
JP2006010095A (ja) 2004-06-22 2006-01-12 Matsushita Electric Ind Co Ltd 遠隔制御装置
JP2006100952A (ja) 2004-09-28 2006-04-13 Matsushita Electric Ind Co Ltd 通信装置
JP2009033880A (ja) 2007-07-27 2009-02-12 Kyushu Electric Power Co Inc 電力線通信信号遮断機能を有する電力量計
US20100010683A1 (en) * 2008-07-14 2010-01-14 Lawrence Kates Method and apparatus for power-limiting electrical access
JP2010250508A (ja) 2009-04-14 2010-11-04 Chugoku Electric Power Co Inc:The 電力情報管理方法
US20110309689A1 (en) * 2010-06-17 2011-12-22 Semiconductor Energy Laboratory Co., Ltd. Electric power transmitting device, electric power receiving device, and power supply method using electric power transmitting and receiving devices

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Chinese Office Action and Search Report issued Feb. 12, 2015, in corresponding Chinese Application No. 201280001040.7 (with English translation of Search Report).
International Search Report issued Apr. 17, 2012 in International (PCT) Application No. PCT/JP2012/000547.
Rika Kasahara, "Scan Dispatch: Smart meters merely subsidy-motivated, vulnerabilities revealed one after another", Digest of the article for Scan subscriber members, ScanNetSecurity, Aug. 25, 2009, https://www.netsecurity.ne.jp/2-13857.html, with English translation.

Also Published As

Publication number Publication date
JPWO2012105210A1 (ja) 2014-07-03
US20170126058A1 (en) 2017-05-04
US20150333571A1 (en) 2015-11-19
WO2012105210A1 (ja) 2012-08-09
CN102823108B (zh) 2016-03-16
US20130015716A1 (en) 2013-01-17
US10305324B2 (en) 2019-05-28
JP6145813B2 (ja) 2017-06-14
US9583978B2 (en) 2017-02-28
CN102823108A (zh) 2012-12-12

Similar Documents

Publication Publication Date Title
US10305324B2 (en) Smart meter, supply control method, operating method, integrated circuit, system, and program
US8793767B2 (en) Network access management via a secondary communication channel
US20200084196A1 (en) Secure method for mtc device triggering
Yang et al. Stateful intrusion detection for IEC 60870-5-104 SCADA security
US10088883B2 (en) Executing restricted commands on an uninterrupted power supply
CN105635084A (zh) 终端认证装置及方法
WO2018130274A1 (en) Security architecture for machine type communications
CN107438247B (zh) 无线中继实现方法及装置
CN105323790A (zh) 无线路由器及其控制方法
CN102571488B (zh) 一种加密卡故障处理方法、装置与系统
CN111107522B (zh) 一种安防方法及装置、电器、服务器和存储介质
CN103139219B (zh) 基于可信交换机的生成树协议的攻击检测方法
US9294499B2 (en) Defense communication mode for an apparatus able to communicate by means of various communication services
CN111314382B (zh) 一种适用于高频紧急控制系统的网络安全防护方法
CN106209650A (zh) 一种无线路由的控制方法及装置
CN105743863A (zh) 一种对报文进行处理的方法及装置
JP2011221846A (ja) アクセス監視装置及びアクセス監視方法並びにそのプログラム
JP2016039562A (ja) 通信システム及び機器
CN107360574A (zh) 一种终端设备管理方法、一种云控制器及一种无线接入点
CN106686590A (zh) 管制终端识别及管理方法、装置、无线接入点设备
CN105207814A (zh) 基于空路由的ip策略控制系统及方法
JP6628120B2 (ja) 通信監視装置及び通信監視システム
KR102057637B1 (ko) 네트워크를 통한 분전반 장비의 관리 방법 및 이에 사용되는 관리 서버
KR102125767B1 (ko) 아크 전류 발생 판단 방법 및 아크 전류 발생 판단 방법을 실행시키는 프로그램이 기록된 기록 매체
CN107371199B (zh) 一种无线局域网切换的方法、网关及系统

Legal Events

Date Code Title Description
AS Assignment

Owner name: PANASONIC CORPORATION, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MATSUSHIMA, HIDEKI;MATSUZAKI, NATSUME;HAGA, TOMOYUKI;REEL/FRAME:029665/0751

Effective date: 20120910

AS Assignment

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:034194/0143

Effective date: 20141110

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:034194/0143

Effective date: 20141110

STCF Information on status: patent grant

Free format text: PATENTED CASE

AS Assignment

Owner name: SUN PATENT TRUST, NEW YORK

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.;REEL/FRAME:044707/0001

Effective date: 20180122

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

AS Assignment

Owner name: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., JAPAN

Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ERRONEOUSLY FILED APPLICATION NUMBERS 13/384239, 13/498734, 14/116681 AND 14/301144 PREVIOUSLY RECORDED ON REEL 034194 FRAME 0143. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:PANASONIC CORPORATION;REEL/FRAME:056788/0362

Effective date: 20141110

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 8